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Subject: [Qemu-devel] Re: [PATCH v3 0/2] Inter-VM shared memory PCI device
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To: Cam Macdonell <cam@cs.ualberta.ca>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org

On 03/26/2010 01:05 AM, Cam Macdonell wrote:
>
>> I meant a unicast doorbell: 16 bits for guest ID, 16 bits for vector number.
>>      
> Ah, yes.  Who knew "two bit registers" is an ambiguous term.  Do you
> strongly prefer the one doorbell design?
>    

Just floating out ideas.  An advantage is that it conserves register 
space; this is important if we use PIO.  For mmio this isn't so important.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.